Except that some people, like me, work on their own computers (all the freelancers and all the people that use their personal computer for their job, sometimes exclusively, sometimes in addition to their work desktop).
For people like us, who own our work computers, the lines are blurred. Maybe I am not in the majority, but with current work from home, I might even actually be (temporarily?) in the majority...
And that's probably also why people reply so differently to "can an iPad replace your laptop"? Because some include their work activity and some don't...
My guess is other that, except for a small minority of people, iPad cannot replace a laptop if it's for working needs...